Apparatus for producing profile metal articles



July 24, 1934. I SEIFERTH 1,967,788

APPARATUS FOR PRODUC I NG PROFI LE METAL ART I CLE 5 Filed Jan 6. 19315y. 1 x a W1 Q Q r x L I y /4 "07/14 w atented duly @934 pairs wasAPPARATUS iron rnonUorNG PROFILE rm'rar. narrows Hugo Seller-til,iDusseldorf-Oberkassei, Germany Application January 6, 1931, Serial No.506,965 lin Germany February ii, 1930 2 Claims. (on. 80-49) Theinvention relates to apparatus m producing profile metal articles andmore especially metal bars having sharply projecting ribs of conpsiderable height according to my prior Patent No. 1,921,486 in which thework piece to which the desired profile is to be given is guided betweena roller and a table which wholly or partially comprises the saidprofile. It has been found that the use in the rolling table of asection of table which bears the complete profile is in many cases veryexpensive, particularly when the distance apart on the work of thetransverse portions of the profile only is altered and when thedimensions differ. Furthermore, it is advantageous for other reasons toimprove the table.

According to the invention that part of the rolling table which isformed with the profile is simplified and can be employed for variouspurposes, if the section of table is sub-divided in such 29 manner thatsingle interchangeable die portions are formed which can be fitted intothe section of table, but vary in dimensions.

v ()ne construction of apparatus according to the invention isillustrated by way of example in the accompanying drawing.

Figure 1 shows the finished product in longitudinal section.

Figure 2 is acorresponding plan view,

Figure 3 is a longitudinal section through the rolling device the tableof which is provided with interchangeable die portions.

Figure a shows the section or table with the insertions in plan, and

Figure 5 and 6 are cross-sections taken through the table showingdetails of the securing means.

The work a is formed with transverse projections b, c, d, e. f. g, f allof equal height (Figs. 1 and 2). If a duplicate is required, forexample,

it diflering from the design shown in the drawing, only in that theprojections are of a different height or in that the projections c and gare at a difierent angle, it would be necessary to provide another tableinsertion a: were there no provision of interchangeable die, portions h,i, k, I, m, n, 0, these insertions enabling changes to be made in theproduct without involving expensive modincations of the machine, simplyby the substitution of the die portions one for another. In Fig.

3 the work piece a which is supported by the rollers w is pressed by theroll 8 on the rolling table with its die portions and into thetransverse grooves of the latter. 0n the underside or the rolling table,which may be driven in a longitudinal direction by a'gear wheel u, thecounterpressure roll t and the supporting rollers v and m are arranged.The insertions are held secure longitudinally by wedges, it beingsometimes sufllcient to provide a wedge 12, on one side only, the

do wedge pressing the die portions against a projection provided on theopposite side. This wedge p is held securely in position by headedscrews q. The insertions are extended outwards laterally (Figures 5 and6) so that they have a trapezoidal section which fits into thedovetail-section of the table insertion :1: and prevents their rising.By means of clamping members r (Figure 6), the longitudinal sides of the-die portions may be pressed tightly upon the base of the tableinsertion :c, a resilient support being interposed, if necessary.

In particular cases, such as when the projections are undercut, it maybe advantageous to dispense with special means for fixing the dieportions, particularly in the transverse direction. The work will thenbe removed from the table insertion with the correspondingly sub-divideddie portions thereon, and the die portions be removed from the workseparately.

What I claim and desire to secure by Letters Patent in the United Statesis:

1. A device for the production of profile metal bars having sharplyprojecting transverse ribs of considerable height consisting of apressure roll, a counter-pressure roll, a rolling table reciprocatingbetween the said rolls, a. longitudinal recess in the table, a dieinsertion in the said recess, a longitudinal recess in the saidinsertion having a dovetail section, interchangeable die portions in thesaid recess of the insertion which are partly provided with transversegrooves and have a trapezoidal section, wedges at the end of the dieinsertions for fastening the die portions, screws for securing thewedges, and supporting rollers for the die, table.

2. A device for the production of profile metal bars having sharplyprojecting transverse ribs of considerable height, consisting of apressure roll, a counter-pressure roll, a rolling table reciprocatingbetween the said rolls, a longitudinal recess in the table, a dieinsertion in the said recess, a longitudinal recess in the saidinsertion having an undercut rectang'ular section, interchangeable dieportions of trapezoidal section which are arranged in the said recess ofthe table insertion and partly provided with transverse grooves,clamping members at the sides of the die portions, wedges at the ends ofthe recess 01 the table insertion for securing'the die portions in thelongitudinal direction, screws for fastening the said wedges, andsupporting rollers for the die table.

HUGO SEIFERTH.

